Dust extractor



T. s.' coBB nusw EXTRACTOH Filed Marqh 18, 1925 July 27, "1926.

toriesor similar establishments.

.Patentedduly 27, 19.26

U ITE s-T T SL THOMAS-S1. c033, 0111' MIAMI, F ORIDA.

nusr-nxrnaoron. I

Application fil ed March 18,1925 em n6. 16,47). 7 i

Myinvention relates to apparatus at removing dust, dirt and similar" impurities from. cotton, hair, or like material which is being handled in mass... The object of theinvention is to provide a simple and inexpensive apparatus whichwill operate automatically to deliver I the ..cotton or other material at a point of use and withdraw therefrom during itspassage all-impurities so that the material; delivered for. use will be clean and in suitable, condition to produce-a sanitary article. -Theapparatus is particularly advantageous in mattress facobjects of the invention, and otherobjects which will incidentally appear, are attained in suchan apparatusas is illustrated in the accompanying drawing and the invention resides in certain novel features which will be particularly pointed outin the appended claims.

manner, as indicated conventionally at 2;

In the Figure 1 is aplan View, partly broken away and in horizontal section, of one embodiment of my invention, and

Fig. 2 is a vertical section on the 2+2 of Fig.1.

t In the drawing, the reference numeral 1 indicates a delivery spout which may be the outlet of a cotton gin or the like and may be equipped with a'fan or blower of any approved form mounted in any approved Connected with the spout 1 so as to aline axially therewith and receive material di-' rectly therefrom is a pipe or conduit 3. which will havethe same cross sectional contour, as the spout 1 so that it will readily fit thereto. branches 4 and 5, as shown clearly'in Fig. 1, one of the branches being alined with I the' main body of the conduit, while the other forms an acute angle with themain body so as to extend laterally therefrom but at such 'an angle thereto as to furnish an easy turn for the material flowing-through the conduit, In the top and bottom of the conduit at the junction .of the branches at and 5 grooves or beads 6 are formed andin the said grooves or beads is slidably fitted a screen 7 which may conveniently be formed of wire netting having. its edges fitted in a frame or binding 8 adapted to fit cloosly in the grooves andv maintain the shape of thescreen. At one end thefra'me or binding 8 is provided with'a cover 9 adapted to The stated f line The spout 8 is constructed with. two

extend overTthe opening in theside of the conduit through which the screen is inserted and thereby, form a close practically airtight jointtherewith. A knob or other handle lO'is provided on thecover 9/50 facilitate the handling of the screen. The

branch conduit 4: extends, in the'illustr'ated embodiment of the invention, a short distance from the straight branch 5' and is then given aslight turn'to forma conduit lltextending parallel ,with the branchconduit This conduit :11 may be carried to any .point 'in the factory-"where it-is desired to deliver the material; A supplemental branch air conduit 12 communicates with the conduit 11 through the side of the same at the junction' thereof with the conduit.4c,,-and a screen 13, corresponding in .J.all i.:respects to the screen 7, is fitted in" the-conduit 4 in alinenient'withthatiwalloftheconduit11 more remote'from theiconduit 5. Beyond the screen 13, the conduit'l12 is-formed with a i return bend, asindicated at 14, and is carrie d to and merges into the conduit 5, as shown at 15.} The-conduit 5 may be carriedto any desired point and may conveniently be extended through the wall of the building so ,that the impurities traveling I therethrough willbe delivered outside the building. 'In each conduit 5 and 12 is formed an offset 16 whereby clearance between. the air conduits and the material conduit 11 is at tained, as will be readily understood upon i reference to the drawing.

i It is thought the operation of my device will be readily understood from the foregoing description, taken in connection with the a'ccompanying drawinga The cotton, hairjor material of whatever J nature is delivered from the forming machine into the conduit greater portion of the dust and other im- 3 under the influence of the-blower 2 with considerable force and will impinge against and be turned aside by the screen 7,. the, t

purities passing through the screen into again be deflected so that it'will flow through the condiut 11w the point of delivery. The screen'13 will, of course, serve not only as a deflectorqfor the material but. willalso separate an additional quantity of dust and dirt from thematerial so that the material flowing through the delivery conduitll will be in ,proper condition for use. The apparatus as very simple lIiCOIl StI UCtlOIl and may -the conduit 5. The partly cleaned (material v willthen impinge against the screen 13 and be installed in any factory at a, slight expense. The screens are easily removable when it is necessary to clean them of accretions, and the inventionmay be embodied in an apparatus having only one screen or any desired number of screens. Other variations in the specific details may be made Without involving any departure from the invention as the same is defined in the following claims. For instance, the blower may be arranged at any point in the apparatus as may be most convenient under any given circumstances, and while I have stated that the device is applied to the delivery spout of a cotton gin, it may obviously be connected with other machines Without involving any substantial changes in construction or operation. By disposing the screens obliquely across the path of the flowing material to be treated, the material is easily turned aside so that loss due to particles adhering to the screen will be minimized and at the same time the material is permitted to impinge upon the screens with suificient force to partly loosen the dust and dirt which, of course, will pass through the screen under the influence or" the air blast.

It will be understood, of course, that the illustration of the blower 2 is merely by Way of example, inasmuch as frequently the force of the blast through the cotton gin,

or other machine to which the dust extractor is attached, is sutlicient to drive the material through the cleaning conduits and additional power is unnecessary. c

Having thus described the invention, I claim l 1. An apparatus for the purpose set forth comprising a conduit for the passage of material to be cleaned, a conduit for the passage of impurities removed from the material communicating with and arranged at an angle to the first-mentioned conduit, and a screen slidably engaged in the first-mentioned conduit in alinenient with a wall of the secondnnentioned conduit and extending obliquely across the first-mentioned conduit.

2, An apparatus for the purpose setforth comprising a conduit to receive material. to be cleaned, branch conduits communicating therewith, one: of said conduits being alined with the. first-mentioned conduit and the other branch conduit being disposed at a slight angle thereto, and a screen disposed obliquely across the conduit for the impurities and slidably engaged therein, the two branch conduits having delivery portions arranged in parallelism and the conduit for i the impurities having an offset whereby to clear the conduit for the material,

In testimony whereof I aflix my Signature.

THOMAS S. COBB. [1". s.] 

